用双曲线变换法设计IIR数字滤波器的MATLAB语言，通过调试，并且有最后显示的波形

数字信号课程设计，FIR的低通带通高通和IIR的低通带通高通滤波器的设计源程序以及主程序-Digital Signal curriculum design, FIR low-pass band-pass IIR high-pass and low-pass band-pass high-pass filter design, as well as the main program source code

利用Matlab设计数字滤波器的过程中用于实现数字滤波器的级联型结构-Use Matlab design process of digital filters used to implement the digital filter cascade structure